附加<脚本>贴到身体？ [英] Append <Script> Tag to Body?

问题描述

我想在我的HTML页面的主体上添加一个脚本标记。我在页面中添加了以下内容：

 < script type =text / javascript> 
 
函数loadScript（）{
 var script = document.createElement（'script'）; 
 script.type ='text / javascript'; 
 script.src ='https://maps.googleapis.com/maps/api/js?sensor=false&'$ 
'callback = initialize'; 
 document.body.appendChild（script）; 
} 
 
 window.onload = loadScript; 
 
< / script> 
  

我试图在

什么原因这个错误以及如何防止它？

编辑：删除类型text / javascript不会改变任何内容。

解决方案

你得到的错误是因为没有 initialize（）函数。如果你申报一个就没有错误。

  function loadScript（）{
 var script = document.createElement（'script'）; 
 script.type ='text / javascript'; 
 script.src ='https://maps.googleapis.com/maps/api/js?sensor=false&callback=initialize'; 
 document.body.appendChild（script）; 
 console.log（'loadScript'）; 
} 
 
函数initialize（）{
 console.log（'initialize'）; 
} 
 
 window.onload = loadScript; 
  

I want to append a script tag to the body of my HTML page. I added the following in my page:

<script type="text/javascript">  

    function loadScript() {
        var script = document.createElement('script');
        script.type = 'text/javascript';
        script.src = 'https://maps.googleapis.com/maps/api/js?sensor=false&' +
                'callback=initialize';
        document.body.appendChild(script);
    }

    window.onload = loadScript;

</script>

I tried to run it in JSFidle and there where no problems.

When I run it on my html page which runs on a demo server I get the following error in the console:

Uncaught TypeError: undefined is not a function

What causes this error and how can I prevent it?

Edit: Removing the type text/javascript does not change anything.

解决方案

The error you are getting is because there is no initialize() function. If you declare one there will be no error.

function loadScript() {
    var script = document.createElement('script');
    script.type = 'text/javascript';
    script.src = 'https://maps.googleapis.com/maps/api/js?sensor=false&callback=initialize';
    document.body.appendChild(script);
    console.log('loadScript');
}

function initialize() {
    console.log('initialize');
}

window.onload = loadScript;

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